Reporting Category: Number Sense and Operations Standard: 5.N.9 - Solve problems involving multiplication and division of whole numbers, and multiplication of positive fractions with whole numbers.

Harrison plans to make 15 dozen cookies for a family reunion.

How many cookies are equivalent to 15 dozen cookies? Show or explain how you got your answer.

Harrison will bake the cookies on cookie sheets. He will put 18 cookies on each cookie sheet. He will put 2 cookie sheets in his oven at the same time. The cookies take 10 minutes to bake.

What is the total amount of baking time that it will take Harrison to bake all of the cookies? Show or explain how you got your answer.

Scoring Guide and Sample Student Work Select a score point in the table below to view the sample student response.

The student response demonstrates an exemplary understanding of the Number Sense and Operations concepts involved in solving problems involving the multiplication and division of whole numbers.

The student response demonstrates a good understanding of the Number Sense and Operations concepts involved in solving problems involving the multiplication and division of whole numbers. Although there is significant evidence that the student was able to recognize and apply the concepts involved, some aspect of the response is flawed. As a result the response merits 3 points.

The student response demonstrates a fair understanding of the Number Sense and Operations concepts involved in solving problems involving the multiplication and division of whole numbers. While some aspects of the task are completed correctly, others are not. The mixed evidence provided by the student merits 2 points.

The student response demonstrates a minimal understanding of the Number Sense and Operations concepts involved in solving problems involving the multiplication and division of whole numbers.

The student response contains insufficient evidence of an understanding of the Number Sense and Operations concepts involved in solving problems involving the multiplication and division of whole numbers to merit any points.

Note: There are 2 sample student responses for Score Point 4.